Internal-combustion engine for air-compression purposes.



- 1'. E. JACKSON. INTERNAL COMBUSTION ENGINE FOB AIR COMPRESSIONPURPOSES.

APPLIOATION PILED NOV. 21, 1910.

1,003,909, Patentd Sept; 19,1911.

sion Purposes,

EDWARD JACKSON, 10F WILLIAMS'IOWN,v VICTORIA, AUSTRALIA.

INTERNAL-COMFUSTION ENGINE FOR AIR-COMPRESSION PURPOSES.

Specification of Letters Patent.

Application flled November 21,1910. Serial'No. 593,498.

T0 all whom it may concern:

Be it known that I, F Rnn'EDwARD JACK-l soN, a subject of the King ofGreat Britain, residing at 343 Nelson Place, Williamstown, in theStateof Victoria, Commonwealth of Australia, engineer, have invented anInternal-Combustion Engine for Air-Compresof which the following is aspecification.

This invention consists in the temporary employment of the compressionstrokes of one cylinder of a four-cycle multi-cylinder internalcombustion engine of a motor car to compress air for inflating the tiresof motor cars or for operating pneumatic jacks 'HStXIl therefor as wellas for other useful purposes.

It is applicable to four-cycle engines containing two or more cylindersv in any one of which the compression strokesf'of the piston thereof areused for the time being to compress air only by the aid of thisinvention.

The drawings comprise :Figure 1 an elevation of part of a four-cyclefour cylinder motor car petrol engine, Fig. 2 a transverse section online II-II, Fi 1 showing the improvements, Figs. 3 an 4, enlarged detailviews showing the construction of a cut out valve, and Fig. 5 anenlarged section of a non-return valve both hereinafter described.

According to this invention the combustible mixture supply pipe 1, whichdelivers the combustible mixture from the carbureter 2 to each cylinderA, B, C, D, is adapted to be cutout of communication with one cylinder,(such as D) while at the same time "';oscillagted in air is admittedthrough a controllable port 4 to the cut-out ortion 5 of said pipe orotherwise to the inlet valve 10 of such cylinder. Separate valves may beused to cut oil the combustible mixture supply from this cylinder and toadmit air thereto, but a.

duplex valve is preferable whereby the two operations are successivelyor almost simul- -taneously eflected. A valve of this latter kmd isshown in Figs. 3 and 4 and comprises a fiat plate 6 mounted on a plvot 7provided with a handle 8 and adapted to be.

p a valve chamber 9 connected with the combustible mixture supply pipe1-;so as to open the air port 4 formed in said' -cha'mber and cut offthe supply from isaidflp'ipe 1 to the cylinder D, as shown in Figs. 3and By this means when the inficient capacity to Hon of sai let valve 10of the cylinder D opens, the charge of air drawn in bythe piston 11through port 4 is delivered into said cylinder and subsequentlycompressed by the compression stroke of said piston. This compressed airisdischarged through a nonreturn valve 13 and deliveredinto a receiver12 in the end of which said valve 13 may be located. This receiver maybe placed in any convenient position on'and in communication with theupper part of the cylinder D or screwed into the sparking plug hole 14,from which the sparking plug 15, Fig. 1, has been previously temporarilyremoved, as shown in Fig. 2, and said receiver has sufreceiveapproximately all the air which is compressed at each compression strokeof the piston. It will be obvious that this non-return valve 13 preventsthe exhaustion of air from the receiver 12 when the exhaust valve 16 isopened.

The compressed air in the receiver is delivered through the usual hosepipe 17 to the tube-of the tireto be inflated, or to Where the power isrequired.

The compressed air receiver is preferably provided with an air filter orstrainer of Wire gauze 18 to obstruct any impurities in the air. Apressure gage 19 is placed on the receiver or on the hose whereindicated by dotted lines 19 and likewise a relief Ivalve if required isplaced on the receiver or ose.

It will be evident that by simply oscillating the valve plate 6 in thevalve chamber 9, one cylinder is temporarily out out of its usual workand its compression stroke is utilized to compress the air, which isdischarged -intothe receiver from which it is delivered for any purpose,as for instance, to inflate tires of motor cars or operate pneumaticjacks used therefor.

Should it be desired provision may be made on more cylinders than one ofthe series for temporarily cutting'out said cylinders and admitting airthereto for the purposes aforesaid. V

Having fully described my invention, I

claim 1. The combination, with a four-cycle, multi-cylinder internalcombustion engme and a pi e common to the cylinders, for supplying t eengine with gaseous fuel, of valve means interposed at a selected point111 said pipe, and o erable to cut oil the commun cad pipe with aselected one of said Patented Sept. 19,1911.

cylinders and at the same time to establish atmospheric communicationwith the cylinwhichair admitted into the casing through der-thus cut offfrom said pipe, and an air receiveradapted to be fitted to the cylinderthus cutoff from said pipe and having a non-return valve.

2. The combination, with a four-cycle multi-cylinder internal combustionenginesaid port and to interrupt said pipe and thereby cut the same offfrom a selected cylinder and put said cylinder in communication with theatmosphere, the said port havinga diameter approximately equal to thediameter of the usual inlet valve through said port passes, and an airreceiver adapted to be fitted to the cylinder thus cut off from saidpipe and having a non-return valve.

3. The combination with a multi-cylinder four cycle internal combustionengine wherein one cylinder is temporarily utilized for air compressionpurposes of an air receiver adapted to be fitted to the cylinder headand of sufficient capacity to receive approximately' all'the air whichis compressed at each compression stroke of the piston of said cylinder,and a non-return valve provided at the inlet end of said air receiverand through which the compressed air is de-- livered from said piston.

In testimony whereof I have hereunto set my hand in presenceof twosubscribing witnesses. I

FRED EDWARD JACKSON. Witnesses:

EDWARD WATERS, WILLIAM GUEST HOLDEN.

